How to fix the Next Key and Previous Keyboard shortcut key?

[ABSORBENTGHOST]

How to fix Next Key and Previous Keyboard shortcut not working?Its slowing me down tremendously .No matter wat key i assign to it , it don't work .Is the command it self broken?Please help.

[slowtiger]

Those commands are assigned to a key by default, they should show up in red in the list, and you first have to un-assign them before you can assign them.

[Peter Wassink]

...and you first have to un-assign them before you can assign them.

not true,
you can assign one action to as many keys as you like.

Absorbentghost should update.

[ABSORBENTGHOST]

Thank you , ctrl and left and right arrow keys work.